5127561271 has 4 divisors (see below), whose sum is σ = 5860070032. Its totient is φ = 4395052512.

The previous prime is 5127561239. The next prime is 5127561317. The reversal of 5127561271 is 1721657215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5127561271 - 2⁵ = 5127561239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5127561271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5127561071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366254370 + ... + 366254383.

It is an arithmetic number, because the mean of its divisors is an integer number (1465017508).

Almost surely, 2^5127561271 is an apocalyptic number.

5127561271 is a deficient number, since it is larger than the sum of its proper divisors (732508761).

5127561271 is an equidigital number, since it uses as much as digits as its factorization.

5127561271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732508760.

The product of its digits is 29400, while the sum is 37.

The square root of 5127561271 is about 71606.9917745467. The cubic root of 5127561271 is about 1724.3957859788.

The spelling of 5127561271 in words is "five billion, one hundred twenty-seven million, five hundred sixty-one thousand, two hundred seventy-one".